Optimal time segmentation for overlap-add systems with variable amount of window overlap
نویسندگان
چکیده
منابع مشابه
Overlap-add methods for time-scaling of speech
In this tutorial on time scaling we follow one particular line of thought towards computationally efficient high quality methods. We favor time scaling based on time-frequency representations over model based approaches, and proceed to review an iterative phase reconstruction method for time-scaled magnitude spectrograms. The search for a good initial phase estimate leads us to consider synchro...
متن کاملOverlap-Add Synthesis of NonStationary Sinusoids
In overlap-add synthesis of sinusoidal partials, amplitude modulation distortion can occur in the overlap region if the partial frequencies in successive frames diier. The frame-to-frame frequency changes can be accommodated by synthesizing linearly time-varying sinusoids (chirps) in adjacent frames. In this paper we present a new approach to chirp synthesis in which the distortion is eliminate...
متن کاملSleep Overlap Syndrome
Overlap syndrome, which is known as the coexistence of chronic obstructive pulmonary disease (COPD) and obstructive sleep apnea (OSA), was first defined by Flenley. Although it can refer to concomitant occurrence of any of the pulmonary diseases and OSA, overlap syndrome is commonly considered as the coexistence of OSA and COPD. This disease has unique adverse health consequences distinct from ...
متن کاملA Hybrid Transformation and Filtering Approach for Speech Enhancement with Time Domain Pitch Synchronous Overlap-add
The main goal of Speech enhancement is to enhance the performance of speech communication systems in noisy environments. The problem of enhancing speech which is corrupted by noise is very large, although a lot of techniques have been introduced by the researchers over the past years. This problem is more severe when there is no additional information on the nature of noise degradation is avail...
متن کاملPvsola: a Phase Vocoder with Synchronized Overlap-add
In this paper we present an original method mixing temporal and spectral processing to reduce the phasiness in the phase vocoder. Phasiness is an inherent artifact of the phase vocoder that appears when a sound is slowed down. The audio is perceived as muffled, reverberant and/or moving away from the microphone. This is due to the loss of coherence between the phases across the bins of the Shor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Signal Processing Letters
سال: 2005
ISSN: 1070-9908
DOI: 10.1109/lsp.2005.855560